Wheel cap for an automobile



FIG. 1 is a perspective view of a wheel cap for an automobile, showing our new design; and

FIG. 2 is a front elevation view thereof.

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a right side elevation view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a wheel cap for an automobile, as shown and described. 